Cat bed



FIG. 1 is a top view of the cat bed showing the new design;

FIG. 2 is a front view of the cat bed;

FIG. 3 is another front view of the cat bed in an alternate-position;

FIG. 4 is a left side view of the cat bed, the right side being a mirror image of the left side shown; and,

FIG. 5 is a back view of the cat bed.

The cat shown in broken lines in FIGS. 2 and 3 is for illustration only and forms no part of the claimed design. 

The ornamental design for a cat bed, as shown and described. 